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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_8fe860fea3f22bf52ea313aa42254690.html">ff</a></li><li class="navelem"><a class="el" href="dir_e3f2dcc09f9eddb6c51a92ee16dc93ad.html">detail</a></li>  </ul>
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<a href="pipeline__impl_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#ifndef GRPPI_FF_DETAIL_PIPELINE_IMPL_H</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#define GRPPI_FF_DETAIL_PIPELINE_IMPL_H</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#ifdef GRPPI_FF</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="simple__node_8h.html">simple_node.h</a>&quot;</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="ordered__stream__reduce_8h.html">ordered_stream_reduce.h</a>&quot;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="unordered__stream__reduce_8h.html">unordered_stream_reduce.h</a>&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="ordered__stream__filter_8h.html">ordered_stream_filter.h</a>&quot;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="unordered__stream__filter_8h.html">unordered_stream_filter.h</a>&quot;</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="iteration__nodes_8h.html">iteration_nodes.h</a>&quot;</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &quot;../../common/mpmc_queue.h&quot;</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor">#include &lt;ff/allocator.hpp&gt;</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#include &lt;ff/pipeline.hpp&gt;</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &lt;ff/farm.hpp&gt;</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#include &lt;atomic&gt;</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacegrppi.html">grppi</a> {</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="keyword">namespace </span>detail_ff {</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="keyword">class </span>pipeline_impl : <span class="keyword">public</span> ff::ff_pipeline {</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Generator, <span class="keyword">typename</span> ... Transformers&gt;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;  pipeline_impl(<span class="keywordtype">int</span> nworkers, <span class="keywordtype">bool</span> ordered, Generator &amp;&amp; gen, </div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;      Transformers &amp;&amp; ... transform_ops);</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;  <span class="keywordtype">void</span> set_queue_attributes(<span class="keywordtype">int</span> size, <a class="code" href="namespacegrppi.html#aa0514650a765d4853343655e7588662b">queue_mode</a> mode) noexcept {</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    queue_size_ = size;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    queue_mode_ = mode;</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;  }</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;  mpmc_queue&lt;T&gt; make_queue()<span class="keyword"> const </span>{</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="keywordflow">return</span> {queue_size_, queue_mode_};</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  }</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;  <span class="keywordtype">void</span> add_node(std::unique_ptr&lt;ff_node&gt; &amp;&amp; p_node) {</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    ff::ff_pipeline::add_stage(p_node.get());</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    nodes_.push_back(std::forward&lt;std::unique_ptr&lt;ff_node&gt;&gt;(p_node));</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;  }</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer,</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;      requires_no_pattern&lt;Transformer&gt; = 0&gt;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;  <span class="keyword">auto</span> add_stages(Transformer &amp;&amp;stage) </div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;  {</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <span class="keyword">using</span> gen_value_type = std::decay_t&lt;Input&gt;;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    <span class="keyword">using</span> node_type = node_impl&lt;gen_value_type,void,Transformer&gt;;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    <span class="keyword">auto</span> p_stage = std::make_unique&lt;node_type&gt;(std::forward&lt;Transformer&gt;(stage));</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    add_node(std::move(p_stage));</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;  }</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;      requires_no_pattern&lt;Transformer&gt; = 0&gt;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;  <span class="keyword">auto</span> add_stages(Transformer &amp;&amp; transform_op,</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;  {</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    static_assert(!std::is_void&lt;Input&gt;::value,</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        <span class="stringliteral">&quot;Transformer must take non-void argument&quot;</span>);</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    <span class="keyword">using</span> output_type =</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        std::decay_t&lt;typename std::result_of&lt;Transformer(Input)&gt;::type&gt;;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    static_assert(!std::is_void&lt;output_type&gt;::value,</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;        <span class="stringliteral">&quot;Transformer must return a non-void result&quot;</span>);</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    <span class="keyword">using</span> node_type = node_impl&lt;Input,output_type,Transformer&gt;;</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    <span class="keyword">auto</span> p_stage = std::make_unique&lt;node_type&gt;(</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;        std::forward&lt;Transformer&gt;(transform_op));</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    add_node(std::move(p_stage));</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    add_stages&lt;Input&gt;(std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;  }</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> ... Transformers,</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>...&gt; <span class="keyword">class </span>Pipeline,</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;          <a class="code" href="namespacegrppi.html#a1c6e71cb617cee8d3216b1710891a349">requires_pipeline</a>&lt;Pipeline&lt;Transformers...&gt;&gt; = 0&gt;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  <span class="keyword">auto</span> add_stages(Pipeline&lt;Transformers...&gt; &amp; pipeline_obj,</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;  {</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> add_stages&lt;Input&gt;(std::move(pipeline_obj),</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;        std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;  }</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> ... Transformers,</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>...&gt; <span class="keyword">class </span>Pipeline,</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;          <a class="code" href="namespacegrppi.html#a1c6e71cb617cee8d3216b1710891a349">requires_pipeline</a>&lt;Pipeline&lt;Transformers...&gt;&gt; = 0&gt;</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;  <span class="keyword">auto</span> add_stages(Pipeline&lt;Transformers...&gt; &amp;&amp; pipeline_obj,</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;  {</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> add_stages_nested&lt;Input&gt;(</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        std::tuple_cat(</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;          pipeline_obj.transformers(),</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;          std::forward_as_tuple(other_transform_ops...)</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        ),</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;        std::make_index_sequence&lt;<span class="keyword">sizeof</span>...(Transformers)+<span class="keyword">sizeof</span>...(OtherTransformers)&gt;());</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;  }</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> ... Transformers, std::size_t ... I&gt;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;  <span class="keyword">auto</span> add_stages_nested(std::tuple&lt;Transformers...&gt; &amp;&amp; transform_ops,</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;      std::index_sequence&lt;I...&gt;) </div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;  {</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;    <span class="keywordflow">return</span> add_stages&lt;Input&gt;(std::forward&lt;Transformers&gt;(std::get&lt;I&gt;(transform_ops))...);</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;  }</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> FarmTransformer,</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Farm,</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;          requires_farm&lt;Farm&lt;FarmTransformer&gt;&gt; = 0&gt;</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;  <span class="keyword">auto</span> add_stages(Farm&lt;FarmTransformer&gt; &amp; farm_obj) </div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;  {</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> add_stages&lt;Input&gt;(std::move(farm_obj));</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;  }</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> FarmTransformer,</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Farm,</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;          requires_farm&lt;Farm&lt;FarmTransformer&gt;&gt; = 0&gt;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;  <span class="keyword">auto</span> add_stages(Farm&lt;FarmTransformer&gt; &amp;&amp; farm_obj) </div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;  {</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    static_assert(!std::is_void&lt;Input&gt;::value,</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;        <span class="stringliteral">&quot;Farm must take non-void argument&quot;</span>);</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    <span class="keyword">using</span> output_type = std::decay_t&lt;<span class="keyword">typename</span> std::result_of&lt;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;        FarmTransformer(Input)&gt;::type&gt;;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    <span class="keyword">using</span> worker_type = node_impl&lt;Input,output_type,Farm&lt;FarmTransformer&gt;&gt;;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    std::vector&lt;std::unique_ptr&lt;ff::ff_node&gt;&gt; workers;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i=0; i&lt;nworkers_; ++i) {</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;      workers.push_back(std::make_unique&lt;worker_type&gt;(</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;          std::forward&lt;Farm&lt;FarmTransformer&gt;&gt;(farm_obj))</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;      );</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    }</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    <span class="keywordflow">if</span>(ordered_) {</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;      <span class="keyword">using</span> node_type = ff::ff_OFarm&lt;Input,output_type&gt;;</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(std::move(workers));</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;    } </div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;    <span class="keywordflow">else</span> {</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;      <span class="keyword">using</span> node_type = ff::ff_Farm&lt;Input,output_type&gt;;</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(std::move(workers));</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;    }</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;  }</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;  <span class="comment">// parallel stage -- Farm pattern ref with variadic</span></div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> FarmTransformer,</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Farm,</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;          requires_farm&lt;Farm&lt;FarmTransformer&gt;&gt; = 0&gt;</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;  <span class="keyword">auto</span> add_stages(Farm&lt;FarmTransformer&gt; &amp; farm_obj,</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;  {</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> add_stages&lt;Input&gt;(std::move(farm_obj),</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;        std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;  }</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;  <span class="comment">// parallel stage -- Farm pattern with variadic</span></div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> FarmTransformer,</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Farm,</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;          requires_farm&lt;Farm&lt;FarmTransformer&gt;&gt; = 0&gt;</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;  <span class="keyword">auto</span> add_stages( Farm&lt;FarmTransformer&gt; &amp;&amp; farm_obj,</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;  {</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;    static_assert(!std::is_void&lt;Input&gt;::value,</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;        <span class="stringliteral">&quot;Farm must take non-void argument&quot;</span>);</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;    <span class="keyword">using</span> output_type =</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;        std::decay_t&lt;typename std::result_of&lt;FarmTransformer(Input)&gt;::type&gt;;</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;    static_assert(!std::is_void&lt;output_type&gt;::value,</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;        <span class="stringliteral">&quot;Farm must return a non-void result&quot;</span>);</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;    <span class="keyword">using</span> worker_type = node_impl&lt;Input,output_type,Farm&lt;FarmTransformer&gt;&gt;;</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;    std::vector&lt;std::unique_ptr&lt;ff::ff_node&gt;&gt; workers;</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i=0; i&lt;nworkers_; ++i) {</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;      workers.push_back(std::make_unique&lt;worker_type&gt;(</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;          std::forward&lt;Farm&lt;FarmTransformer&gt;&gt;(farm_obj))</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;      );</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;    }</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;    <span class="keywordflow">if</span>(ordered_) {</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;      <span class="keyword">using</span> node_type = ff::ff_OFarm&lt;Input,output_type&gt;;</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(std::move(workers));</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;      add_stages&lt;output_type&gt;(std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;    } </div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;    <span class="keywordflow">else</span> {</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;      <span class="keyword">using</span> node_type = ff::ff_Farm&lt;Input,output_type&gt;;</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(std::move(workers));</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;      add_stages&lt;output_type&gt;(std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;    }</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;  }</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;  <span class="comment">// parallel stage -- Filter pattern ref</span></div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;      <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Filter,</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;      requires_filter&lt;Filter&lt;Predicate&gt;&gt; = 0&gt;</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;  <span class="keyword">auto</span> add_stages(Filter&lt;Predicate&gt; &amp; filter_obj) </div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;  {</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> add_stages&lt;Input&gt;(std::move(filter_obj));</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;  }</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;  <span class="comment">// parallel stage -- Filter pattern</span></div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;      <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Filter,</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;      requires_filter&lt;Filter&lt;Predicate&gt;&gt; = 0&gt;</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;  <span class="keyword">auto</span> add_stages(Filter&lt;Predicate&gt; &amp;&amp; filter_obj) </div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;{</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;    static_assert(!std::is_void&lt;Input&gt;::value,</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;        <span class="stringliteral">&quot;Filter must take non-void argument&quot;</span>);</div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;    <span class="keywordflow">if</span>(ordered_) {</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;      <span class="keyword">using</span> node_type = ordered_stream_filter&lt;Input,Filter&lt;Predicate&gt;&gt;;</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(</div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;          std::forward&lt;Filter&lt;Predicate&gt;&gt;(filter_obj), nworkers_);</div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;    } </div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;    <span class="keywordflow">else</span> {</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;      <span class="keyword">using</span> node_type = unordered_stream_filter&lt;Input,Filter&lt;Predicate&gt;&gt;;</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(</div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;          std::forward&lt;Filter&lt;Predicate&gt;&gt;(filter_obj), nworkers_);</div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;    }</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;  }</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;  <span class="comment">// parallel stage -- Filter pattern ref with variadics</span></div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;      <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Filter,</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;      <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;      requires_filter&lt;Filter&lt;Predicate&gt;&gt; = 0&gt;</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;  <span class="keyword">auto</span> add_stages(Filter&lt;Predicate&gt; &amp; filter_obj,</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;  {</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> add_stages&lt;Input&gt;(std::move(filter_obj),</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;        std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;  }</div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;  <span class="comment">// parallel stage -- Filter pattern with variadics</span></div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;      <span class="keyword">template</span> &lt;<span class="keyword">typename</span>&gt; <span class="keyword">class </span>Filter,</div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;      <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;      requires_filter&lt;Filter&lt;Predicate&gt;&gt; = 0&gt;</div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;  <span class="keyword">auto</span> add_stages(Filter&lt;Predicate&gt; &amp;&amp; filter_obj,</div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;  {</div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;    static_assert(!std::is_void&lt;Input&gt;::value,</div><div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;        <span class="stringliteral">&quot;Filter must take non-void argument&quot;</span>);</div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;</div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;    <span class="keywordflow">if</span>(ordered_) {</div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;      <span class="keyword">using</span> node_type = ordered_stream_filter&lt;Input,Filter&lt;Predicate&gt;&gt;;</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;              std::forward&lt;Filter&lt;Predicate&gt;&gt;(filter_obj), nworkers_);</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;      add_stages&lt;Input&gt;(std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;    } </div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;    <span class="keywordflow">else</span> {</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;      <span class="keyword">using</span> node_type = unordered_stream_filter&lt;Input,Filter&lt;Predicate&gt;&gt;;</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(</div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;          std::forward&lt;Filter&lt;Predicate&gt;&gt;(filter_obj), nworkers_);</div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;      add_stages&lt;Input&gt;(std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;    }</div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;  }</div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Combiner, <span class="keyword">typename</span> Identity,</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C, <span class="keyword">typename</span> I&gt; <span class="keyword">class </span>Reduce,</div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;          requires_reduce&lt;Reduce&lt;Combiner,Identity&gt;&gt; = 0&gt;</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;  <span class="keyword">auto</span> add_stages(Reduce&lt;Combiner,Identity&gt; &amp; reduce_obj,</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;  {</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> add_stages&lt;Input&gt;(std::move(reduce_obj),</div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;        std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;  }</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Combiner, <span class="keyword">typename</span> Identity,</div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;          <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C, <span class="keyword">typename</span> I&gt; <span class="keyword">class </span>Reduce,</div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;          <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;          requires_reduce&lt;Reduce&lt;Combiner,Identity&gt;&gt; = 0&gt;</div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;  <span class="keyword">auto</span> add_stages(Reduce&lt;Combiner,Identity&gt; &amp;&amp; reduce_obj,</div><div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;  {</div><div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;    static_assert(!std::is_void&lt;Input&gt;::value,</div><div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;        <span class="stringliteral">&quot;Reduce must take non-void argument&quot;</span>);</div><div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;</div><div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;    <span class="keywordflow">if</span>(ordered_) {</div><div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;      <span class="keyword">using</span> reducer_type = Reduce&lt;Combiner,Identity&gt;;</div><div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;      <span class="keyword">using</span> node_type = ordered_stream_reduce&lt;Input,reducer_type,Combiner&gt;;</div><div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(</div><div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;          std::forward&lt;reducer_type&gt;(reduce_obj), </div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;          nworkers_);</div><div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;      add_stages&lt;Input&gt;(std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;    } </div><div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;    <span class="keywordflow">else</span> {</div><div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;      <span class="keyword">using</span> reducer_type = Reduce&lt;Combiner,Identity&gt;;</div><div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;      <span class="keyword">using</span> node_type = unordered_stream_reduce&lt;Input,reducer_type,Combiner&gt;;</div><div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(</div><div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;          std::forward&lt;Reduce&lt;Combiner,Identity&gt;&gt;(reduce_obj), </div><div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;          nworkers_);</div><div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;      add_stages&lt;Input&gt;(std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;    }</div><div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;  }</div><div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;</div><div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> P&gt; <span class="keyword">class </span>Iteration,</div><div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;            requires_iteration&lt;Iteration&lt;Transformer,Predicate&gt;&gt; =0,</div><div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;            requires_no_pattern&lt;Transformer&gt; =0&gt;</div><div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;  <span class="keyword">auto</span> add_stages(Iteration&lt;Transformer,Predicate&gt; &amp; iteration_obj,</div><div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;  {</div><div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> add_stages&lt;Input&gt;(std::move(iteration_obj),</div><div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;        std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;  }</div><div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;</div><div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;</div><div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> P&gt; <span class="keyword">class </span>Iteration,</div><div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;            requires_iteration&lt;Iteration&lt;Transformer,Predicate&gt;&gt; =0,</div><div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;            requires_no_pattern&lt;Transformer&gt; =0&gt;</div><div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;  <span class="keyword">auto</span> add_stages(Iteration&lt;Transformer,Predicate&gt; &amp;&amp; iteration_obj,</div><div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;  {</div><div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;    std::vector&lt;std::unique_ptr&lt;ff::ff_node&gt;&gt; workers;</div><div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;</div><div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;    <span class="keyword">using</span> iteration_type = Iteration&lt;Transformer,Predicate&gt;;</div><div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;    <span class="keyword">using</span> worker_type = iteration_worker&lt;Input,iteration_type&gt;;</div><div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i&lt;nworkers_; ++i)</div><div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;      workers.push_back(</div><div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;        std::make_unique&lt;worker_type&gt;(</div><div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;          std::forward&lt;iteration_type&gt;(iteration_obj)));</div><div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;</div><div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;    <span class="keywordflow">if</span> (ordered_) {</div><div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;      <span class="keyword">using</span> node_type = ff::ff_OFarm&lt;Input&gt;;</div><div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(std::move(workers));</div><div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;      add_stages&lt;Input&gt;(std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;    } </div><div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;    <span class="keywordflow">else</span> {</div><div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;      <span class="keyword">using</span> node_type = ff::ff_Farm&lt;Input&gt;;</div><div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;      <span class="keyword">auto</span> p_farm = std::make_unique&lt;node_type&gt;(std::move(workers));</div><div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;      add_node(std::move(p_farm));</div><div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;      add_stages&lt;Input&gt;(std::forward&lt;OtherTransformers&gt;(other_transform_ops)...);</div><div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;    }</div><div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;  }</div><div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;</div><div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> Predicate,</div><div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;      <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> P&gt; <span class="keyword">class </span>Iteration,</div><div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;      <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;      requires_iteration&lt;Iteration&lt;Transformer,Predicate&gt;&gt; =0,</div><div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;      requires_pipeline&lt;Transformer&gt; =0&gt;</div><div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;  <span class="keyword">auto</span> add_stages(Iteration&lt;Transformer,Predicate&gt; &amp;&amp; iteration_obj,</div><div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;      OtherTransformers &amp;&amp; ... other_transform_ops) </div><div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;  {</div><div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;    static_assert(!is_pipeline&lt;Transformer&gt;, <span class="stringliteral">&quot;Not implemented&quot;</span>);</div><div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;  }</div><div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;</div><div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Execution, <span class="keyword">typename</span> Transformer, </div><div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>, <span class="keyword">typename</span>&gt; <span class="keyword">class </span>Context,</div><div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;            requires_context&lt;Context&lt;Execution,Transformer&gt;&gt; = 0&gt;</div><div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;  <span class="keyword">auto</span> add_stages(Context&lt;Execution,Transformer&gt; &amp; context_op, </div><div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;       OtherTransformers &amp;&amp;... other_ops)</div><div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;  {</div><div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;    <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> add_stages&lt;Input&gt;(std::move(context_op),</div><div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;      std::forward&lt;OtherTransformers&gt;(other_ops)...);</div><div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;  }</div><div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;</div><div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Input, <span class="keyword">typename</span> Execution, <span class="keyword">typename</span> Transformer, </div><div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span>, <span class="keyword">typename</span>&gt; <span class="keyword">class </span>Context,</div><div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;            <span class="keyword">typename</span> ... OtherTransformers,</div><div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;            requires_context&lt;Context&lt;Execution,Transformer&gt;&gt; = 0&gt;</div><div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;  <span class="keyword">auto</span> add_stages(Context&lt;Execution,Transformer&gt; &amp;&amp; context_op, </div><div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;       OtherTransformers &amp;&amp;... other_ops)</div><div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;  {</div><div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;</div><div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;   <span class="keywordflow">return</span> this-&gt;<span class="keyword">template</span> add_stages&lt;Input&gt;(context_op.transformer(),</div><div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;      std::forward&lt;OtherTransformers&gt;(other_ops)...);</div><div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;  }</div><div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;</div><div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;</div><div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;</div><div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;  <span class="keywordtype">int</span> nworkers_;</div><div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;  <span class="keywordtype">bool</span> ordered_;</div><div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;  std::vector&lt;std::unique_ptr&lt;ff_node&gt;&gt; nodes_;</div><div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;  </div><div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;  <a class="code" href="namespacegrppi.html#aa0514650a765d4853343655e7588662b">queue_mode</a> queue_mode_ = <a class="code" href="namespacegrppi.html#aa0514650a765d4853343655e7588662ba14343966a1d7dce7526e57cf2206d19d">queue_mode::blocking</a>;</div><div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;</div><div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;  constexpr <span class="keyword">static</span> <span class="keywordtype">int</span> default_queue_size = 100;</div><div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;  <span class="keywordtype">int</span> queue_size_ = default_queue_size;</div><div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;</div><div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;};</div><div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;</div><div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Generator, <span class="keyword">typename</span> ... Transformers&gt;</div><div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;pipeline_impl::pipeline_impl(</div><div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;    <span class="keywordtype">int</span> nworkers, </div><div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;    <span class="keywordtype">bool</span> ordered, </div><div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;    Generator &amp;&amp; gen_op, </div><div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;    Transformers &amp;&amp; ... transform_ops)</div><div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;  :</div><div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;    nworkers_{nworkers}, </div><div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;    ordered_{ordered},</div><div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;    nodes_{}</div><div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;{</div><div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;  <span class="keyword">using</span> <a class="code" href="namespacegrppi.html#a64dd705d0f32b64d20dba8d5b9cebbbe">result_type</a> = std::decay_t&lt;typename std::result_of&lt;Generator()&gt;::type&gt;;</div><div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;  <span class="keyword">using</span> generator_value_type = <span class="keyword">typename</span> result_type::value_type;</div><div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;  <span class="keyword">using</span> node_type = node_impl&lt;void,generator_value_type,Generator&gt;;</div><div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;</div><div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;  <span class="keyword">auto</span> first_stage = std::make_unique&lt;node_type&gt;(</div><div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;      std::forward&lt;Generator&gt;(gen_op));</div><div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;</div><div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;  add_node(std::move(first_stage));</div><div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;</div><div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;  add_stages&lt;generator_value_type&gt;(std::forward&lt;Transformers&gt;(transform_ops)...);</div><div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;}</div><div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;</div><div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;</div><div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;} <span class="comment">// namespace detail_ff</span></div><div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;</div><div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;} <span class="comment">// namespace grppi</span></div><div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;</div><div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;</div><div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;<span class="preprocessor">#endif // GRPPI_FF</span></div><div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;</div><div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="namespacegrppi_html"><div class="ttname"><a href="namespacegrppi.html">grppi</a></div><div class="ttdef"><b>Definition:</b> callable_traits.h:26</div></div>
<div class="ttc" id="ordered__stream__reduce_8h_html"><div class="ttname"><a href="ordered__stream__reduce_8h.html">ordered_stream_reduce.h</a></div></div>
<div class="ttc" id="namespacegrppi_html_aa0514650a765d4853343655e7588662b"><div class="ttname"><a href="namespacegrppi.html#aa0514650a765d4853343655e7588662b">grppi::queue_mode</a></div><div class="ttdeci">queue_mode</div><div class="ttdef"><b>Definition:</b> mpmc_queue.h:35</div></div>
<div class="ttc" id="namespacegrppi_html_aa0514650a765d4853343655e7588662ba14343966a1d7dce7526e57cf2206d19d"><div class="ttname"><a href="namespacegrppi.html#aa0514650a765d4853343655e7588662ba14343966a1d7dce7526e57cf2206d19d">grppi::queue_mode::blocking</a></div></div>
<div class="ttc" id="namespacegrppi_html_a1c6e71cb617cee8d3216b1710891a349"><div class="ttname"><a href="namespacegrppi.html#a1c6e71cb617cee8d3216b1710891a349">grppi::requires_pipeline</a></div><div class="ttdeci">typename std::enable_if_t&lt; is_pipeline&lt; T &gt;, int &gt; requires_pipeline</div><div class="ttdef"><b>Definition:</b> pipeline_pattern.h:111</div></div>
<div class="ttc" id="unordered__stream__reduce_8h_html"><div class="ttname"><a href="unordered__stream__reduce_8h.html">unordered_stream_reduce.h</a></div></div>
<div class="ttc" id="simple__node_8h_html"><div class="ttname"><a href="simple__node_8h.html">simple_node.h</a></div></div>
<div class="ttc" id="namespacegrppi_html_a64dd705d0f32b64d20dba8d5b9cebbbe"><div class="ttname"><a href="namespacegrppi.html#a64dd705d0f32b64d20dba8d5b9cebbbe">grppi::result_type</a></div><div class="ttdeci">typename std::result_of&lt; Transformer(Input)&gt;::type result_type</div><div class="ttdoc">Determines the return type of appliying a function on a input type. </div><div class="ttdef"><b>Definition:</b> patterns.h:110</div></div>
<div class="ttc" id="iteration__nodes_8h_html"><div class="ttname"><a href="iteration__nodes_8h.html">iteration_nodes.h</a></div></div>
<div class="ttc" id="unordered__stream__filter_8h_html"><div class="ttname"><a href="unordered__stream__filter_8h.html">unordered_stream_filter.h</a></div></div>
<div class="ttc" id="ordered__stream__filter_8h_html"><div class="ttname"><a href="ordered__stream__filter_8h.html">ordered_stream_filter.h</a></div></div>
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